The Transformer,current, cataloged under National Stock Number 5950-00-325-8682, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Keytronics, Inc. Div Api Technologies Corp- Magnetics. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-325-8682 |
| Primary Part Number | K4188 |
| Item Name | Transformer,current |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Keytronics, Inc. Div Api Technologies Corp- Magnetics |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT |
| Mounting Method | THREADED STUD(S) SINGLE GROUP |
| Body Width | 0.750 INCHES NOMINAL IN |
| Body Height | 1.125 INCHES NOMINAL IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Installation for Which Designed | INDOOR PORTABLE |
| Distance Between Mounting Facility Centers | 0.397 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Nominal Thread Size | 0.112 INCHES SINGLE GROUP IN |
| Body Length | 0.750 INCHES NOMINAL IN |
| Winding Operating Current | 13.0 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 380.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT |
| Thread Quantity Per Inch | 40 SINGLE GROUP |
| Terminal Type and Quantity | 4 WIRE HOOK |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| K4188 PRIMARY | Keytronics, Inc. Div Api Technologies Corp- Magnetics (USA) |
| GE-304-P PRIMARY | Espey Mfg and Electronics Corp (USA) |
| GE-304-P | Spectrum Control, Inc. Dba Spectrum Control Technology Div Api Technologies - Eis Ceramics (USA) |
| Reference | Meaning |
|---|---|
| GE-304-P | 5/9 Secondary reference U.S. Government activity |
| GK4188 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| W7963 | 5/9 Secondary reference Cen Electronics a Div of Chloride Power Electronics Inc |
| 885C886 | 1/2 Source control — Government-approved source U.S. Government activity |
| W7963 | C/1 Advisory reference — outside the item-of-supply concept American Automatic Controls Corp |
| 885C886P0001 | 5/9 Secondary reference U.S. Government activity |
| 885C886P1 | 5/9 Secondary reference U.S. Government activity |
NSN 5950-00-325-8682 is a Transformer,current, manufactured by Keytronics, Inc. Div Api Technologies Corp- Magnetics, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-325-8682 has 3 manufacturer part numbers on file: K4188 (Keytronics, Inc. Div Api Technologies Corp- Magnetics), GE-304-P (Espey Mfg and Electronics Corp), GE-304-P (Spectrum Control, Inc. Dba Spectrum Control Technology Div Api Technologies - Eis Ceramics).
Key specifications for K4188: Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Mounting Method: THREADED STUD(S) SINGLE GROUP. 17 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.